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  A visual but no haptic face inversion effect indicates modality-specific processing differences

Dopjans, L., Wallraven, C., & Bülthoff, H. (2008). A visual but no haptic face inversion effect indicates modality-specific processing differences. Poster presented at 31st European Conference on Visual Perception (ECVP 2008), Utrecht, The Netherlands.

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Dopjans, L1, 2, Author              
Wallraven, C1, 2, Author              
Bülthoff, HH1, 2, Author              
Affiliations:
1Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497797              
2Max Planck Institute for Biological Cybernetics, Max Planck Society, Spemannstrasse 38, 72076 Tübingen, DE, ou_1497794              

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 Abstract: In previous experiments, we provided further evidence that 3-D face stimuli can be learnt and recognized across haptic and visual modalities. Our results suggested information transfer across modalities to be asymmetric due to differences in visual versus haptic face processing (ie, configural vs featural). To test this hypothesis, we designed two experiments investigating a visual, haptic and cross-modal face-inversion effect: Experiment 1 used an old/new recognition task in which three upright faces were learnt visually followed by three visual test-blocks (one with upright and two with inverted faces) and one haptic test-block with inverted faces. We found a strong inversion effect for visually learnt faces (visual-upright: d'=2.07, visual-inverted: d'=0.6, haptic-inverted: d'=0.52). When we exchanged learning and testing modalities in Experiment 2 (haptic learning of upright faces followed by one haptic-upright, two haptic-inverted and one visual-inverted test-blocks), we failed to find an inversion effect for haptically learnt faces (haptic-upright: d'=1.45, haptic-inverted: d'=1.75, visual-inverted: d'=1.16). Whereas visual face processing thus operates configurally, haptic processing seems to rely on featural information.

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 Dates: 2008-08
 Publication Status: Published in print
 Pages: -
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 Rev. Type: -
 Identifiers: DOI: 10.1177/03010066080370S101
BibTex Citekey: 5215
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Title: 31st European Conference on Visual Perception (ECVP 2008)
Place of Event: Utrecht, The Netherlands
Start-/End Date: 2008-08-24 - 2008-08-28

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Title: Perception
Source Genre: Journal
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Publ. Info: London : Pion Ltd.
Pages: - Volume / Issue: 37 (ECVP Abstract Supplement) Sequence Number: - Start / End Page: 5 - 6 Identifier: ISSN: 0301-0066
CoNE: https://pure.mpg.de/cone/journals/resource/954925509369